Thermal decomposition of polymer blends by TG-DTA-MS

摘要

Polymer blends of PSF and PVP are used in this experiment to evaluate its thermal decomposition behavior and its corresponding evolved gasesusing TG-DTA coupled with photoionization mass spectrometry. Preliminary measurement result of a 50-50 polymer blend in inert atmosphereshows a two-stage mass loss while the oxidized atmosphere shows a four stage mass loss. Evolved gases detected from polymer blend measuredin inert atmosphere were mostly organic gases. On the other hand, the evolved gases detected under oxidized atmosphere were mostly H_2O,CO_2, and SO_2 as product of combustion reaction.